1. Unwashed pubic hair
2. water with large amounts of unknown objects and/or seaweed in it
3. an object that is both grody and raunchy
4. something that makes someone throw up, just from looking at it

"Hey man, did you see that girls graunchy pubes in math class?"
"I wouldn't jump in that water, it's graunchy."
"After I saw her graunchy cellulite, I threw up everywhere."
"That redneck kid was so graunchy, that i had to leave.